Which procedure could be used to demonstrate that matter is conserved during a chemical change or reaction?(1 point)
Responses
Find the mass of a piece of paper. Tear the paper into smaller pieces. Find the mass of the pieces.
Find the mass of a piece of paper. Tear the paper into smaller pieces. Find the mass of the pieces.
Find the mass of a log. Burn the log until it turns to ash and smoke. Find the mass of the ash.
Find the mass of a log. Burn the log until it turns to ash and smoke. Find the mass of the ash.
Find the mass of an acid and a base. Combine them to produce water and a salt. Find the mass of the water and salt.
Find the mass of an acid and a base. Combine them to produce water and a salt. Find the mass of the water and salt.
Find the mass of a stick of butter. Heat the butter until it melts. Find the mass of the melted butter.
Find the mass of a log. Burn the log until it turns to ash and smoke. Find the mass of the ash.
The correct answer is:
Find the mass of an acid and a base. Combine them to produce water and a salt. Find the mass of the water and salt.
The correct procedure that could be used to demonstrate that matter is conserved during a chemical change or reaction is:
3. Find the mass of an acid and a base. Combine them to produce water and a salt. Find the mass of the water and salt.
To perform this procedure, you would start by measuring the mass of both the acid and the base separately using a balance. After that, you would combine the acid and base in a reaction vessel, allowing them to react. The reaction between the acid and base results in the formation of water and a salt. Finally, you would measure the mass of the water and salt that are produced.
By comparing the initial mass of the acid and base with the final mass of the water and salt, you can determine if matter is conserved during the reaction. If matter is conserved, the total mass of the water and salt should be equal to the combined mass of the starting acid and base.
It is important to follow this procedure carefully and ensure accurate measurements to obtain reliable results.